How do I say in French...?

Question

... "Sixteen million (money worth in gold) - it's enough to last a lifetime."

I want to express this in French, but with simple words I could work with. Is it right if I say:

1) Seize-millions, c’est assez d’or pour le longtemps.
2) Seize-millions, c’est suffit pour le longtemps.

Or something else, what do you think?
Thanks in advance :)
:-)

Answer 1

the answer that way given to you mean
Sixteen million (money worth in gold) - it's enough to last a long time

if you really want to say a lifetime you need to say

Seize-millions en or, c’est suffisant pour toute une vie.

Answer 2

Seize millions en or, c'est assez pour le restant de ses jours/pour finir sa vie.

Answer 3

What the native speaker said, but "longtemps" is just "a long time"; I'd say "pour la vie" if you mean "for a lifetime".

Answer 4

Seize millions en or, c'est assez pour durer longtemps
or
Seize millions en or, c'est suffisant pour durer longtemps